Question

Ryan is riding his bike. He biked a distance of 12 miles at a rate of 4 miles per hour. Rearrange the distance formula, d = rt, to solve for Ryan's time in minutes.

480 minutes
180 minutes
8 minutes
3 minutes

Answer 1

180 MINUTES

Explanation:

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Answer 2

180 minutes

Explanation:

Starting with the distance formula ...

d = rt

dividing by the coefficient of t will give an equation for t:

t = d/r

Ryan's rate of 4 miles per hour can be expressed in minutes as 4 miles per 60 minutes. The Ryan's time is ...

t = (12 mi)/(4 mi/60 min) = 12·60/4 min = 180 min

Ryan's time is 180 minutes.